disable neon code on Android non neon hardware

diff --git a/mediastreamer2 b/mediastreamer2
index 219ac72b1747c2fda993e5908461f090822aa135..64fddb0ac8a6a9017f918b43c758247e8bb13e36 160000 (submodule)
--- a/mediastreamer2
+++ b/mediastreamer2
@@ -1 +1 @@
-Subproject commit 219ac72b1747c2fda993e5908461f090822aa135
+Subproject commit 64fddb0ac8a6a9017f918b43c758247e8bb13e36